Rivet-setting implement



C. A. CHISHOLM,

RIVET SETTING IMPLEMENT Sept. 20, 1927. ,112

Filed March 10, 1927 [III/IA I 2/ i i VII/III/I/ gnvawtoz (like: 011

Patented Sept. 20,, 1927.

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RIVET4SETTI-NGIMPLEMENT.

[A lication filed March 10, 1927. seriar m; 1 74,1339.

out so damaging the same that its effectivev ness is destroyed. In'order to provide an opening through which the split rivet may be inserted without the loss of considerable time, the opening must ordinarily be made of greater size than the rivet, thus partially destroying the effectiveness thereof. Accordingly, an important object of the invention is to provide a rivet setting device so constructed that the opening may be formed and the rivet inserted at a single operation.

A further object of the invention is to provide a device of this character including, as a portion of its necessary mechanism, an implement whereby the sections of the spllt rivet may be separated and prepared to receive the blow of a hammer or similar implement whereby the wings of the shank are clamped upon the material.

These and other objects I attain by the construction shown in the accompanying drawings, wherein for the purpose of illustration is shown a preferred embodiment of my invention and wherein V Figure 1 is a view partially in section showing a rivet inserting device, constructed in accordance with my invention in use for inserting a split rivet through two pieces of material;

Figure 2 is a section on the line 22 of 4.0 Figure 1;

Figure 3 is a section on the line 33 of Figure 1; v I

.Figure 4 is a detail view partially in section showing the manner in which the end of the handle bar is used to spread the legs of the rivet.

Referring now more particularly to the drawings, the numeral 10 generally indicates a needle pointed at one end, as indicated at 11. Adjacent'this pointed end, the needle is provided with an eye 12- elongated longitudinally of the needle. The opposite end of the needle is formed with a socket 13 adapted to receive the shank 14 of a split rivet. The walls of this socket are thin and at their upper ends provide a seat upon which the under surface of the head 15 vof the rivet may seat. In combination with a device of this character, I provide a handle bar 16 for the needle. This bar is pointed at one end, as indicated at 17, and shaped, so that it may enter the elongated eye 12 of the needle for a considerable distance. The opposite end 18 of the handle bar is acutely triangular in cross section and provides a wedge, the

thinned edge 19 of which may enter the kerf 20 between the wings 21 of the rivet shank.

In the-use of the shank, the split rivet, which is to be inserted, is placed. with the shank in the socket 13 and the needle forced bar employed as a handle, whereby the needle i is drawn through the material until the head of the rivet is engaged against the face of the material and the needle is withdrawn from the shank of the rivet, leaving the same in position in the material.

It is pointed out that by the use of a needle of this character, the material is simply spread apart, so that it tends to close upon the shank of the rivet just as soon as the needle is withdrawn. This is due to the fact that the needle is tapered from end to end. After the needle has been withdrawn, the handle bar 16 may be removed and the edge 19 entered between the wings of therivet and driven therebetween to spread these wings to a point Where a blow of the hammer will clinch the same upon the material. It I will, of course, be understood that a last or other suitable base will be placed against the head of the rivet during this operation to prevent the rivet from being backed through the material.

Since the construction hereinbefore set forthis capable of a certain range of change and modification without materially departing from the spirit of the invention, I do not limit myself to such specific structure except as hereinafter claimed.

I claim Means for inserting split rivets in materlul comprising 2L member tapered from end to end, one end of the member being pointed, the opposite end of the member having a, socket adapted to receive the shank of the split rivet which is to be inserted, said 111G111- ber having adjacent its pointed end an eye elongated longitudinally thereof, and a handle bar having a pointed end adapted for insertion in said eye to thereby provide a grip whereby the member may be drawn through 10 the material, and on its other end a wedgeshaped structure the smaller end of which is adapted to enter the split of the rivet to thereby fOl'CQ the Wings thereof apart.

In testimony whereof I hereunto nthx signature.

CHARLES A. Gl-USI IOI'JM. 

